Department of Traditional Medicine, School of Persian Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran. Department of Obstetrics and Gynecology, Tehran University of Medical Science, Tehran, Iran. Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran. Department of Traditional Pharmacy, School of Persian Medicine, Tehran University of Medical Sciences, Tehran, Iran. Nursing and Midwifery Care Research Center, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran. Department of Obstetrics and Gynecology, Ziaeian Hospital, Tehran University of Medical Science, Tehran, Iran.